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Annotation of src/usr.bin/window/var.h, Revision 1.4

1.4     ! millert     1: /*     $OpenBSD: var.h,v 1.3 1997/02/25 00:04:32 downsj Exp $  */
1.1       deraadt     2: /*     $NetBSD: var.h,v 1.3 1995/09/28 10:35:02 tls Exp $      */
                      3:
                      4: /*
                      5:  * Copyright (c) 1983, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * Edward Wang at The University of California, Berkeley.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
1.4     ! millert    19:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  *
                     35:  *     @(#)var.h       8.1 (Berkeley) 6/6/93
                     36:  */
                     37:
                     38: struct var {
                     39:        struct var *r_left;
                     40:        struct var *r_right;
                     41:        char *r_name;
                     42:        struct value r_val;
                     43: };
                     44:
                     45: struct var *var_set1();
                     46: struct var *var_setstr1();
                     47: struct var *var_setnum1();
                     48: struct var **var_lookup1();
                     49:
                     50: #define var_set(n, v)          var_set1(&var_head, n, v)
                     51: #define var_setstr(n, s)       var_setstr1(&var_head, n, s)
                     52: #define var_setnum(n, i)       var_setnum1(&var_head, n, i)
                     53: #define var_unset(n)           var_unset1(&var_head, n)
                     54: #define var_lookup(n)          (*var_lookup1(&var_head, n))
                     55: #define var_walk(f, a)         var_walk1(var_head, f, a)
                     56:
                     57: struct var *var_head;          /* secret, shhh */